CEMP-E
TI 811-12
18 August 1998
e. Monitoring fuel tanks.
f.
Monitoring waste oil tanks.
g. Monitoring air compressors.
h. Monitoring water storage tank levels.
i.
Monitoring sewage lift stations.
j.
Monitoring building temperatures.
17. COST SAVINGS. Many facilities and their mechanical/electrical systems and utility operations
require periodic operational adjustments, recording of data or verification of status. The labor costs
associated with these operations, if performed manually, can be significant. Examples include seasonal
HVAC system changeover, electric, gas or water meter reading, and equipment status checks. Some
UMCS functions can result in labor cost savings by automating the operational adjustments, data
recording or status verification. The expected value of labor cost savings is site-specific and will be
reviewed with the installation. UMCS applications which should be evaluated for labor cost savings
include the following. Cost savings will be entered in Table 12-2 at the end of this chapter.
a. Monitoring HVAC system filters.
b. Monitoring fuel oil tank levels.
c.
Monitoring chiller or cooling tower vibration switches.
d. Monitoring building alarms.
e. Providing heating-cooling operation switch over.
f.
Monitoring utility consumption and demand.
18. COST ESTIMATES. The cost estimate necessary to prepare an economic analysis can proceed
after the designer has completed information collection and the design survey, identified the data
transmission system type to be used, located the Central Station/Island Stations, identified equipment
modifications, selected applications programs, compiled I/O point estimates, and arrived at a UMCS
configuration. The cost estimate will be summarized in Table 12-3 at the end of this chapter..
19. ECONOMIC ANALYSIS. The economic analysis will be performed for validation of the DD form
1391. The following tasks will be performed for each system in each building to develop the data required
in Table 12-4 at the end of this chapter for the entire UMCS:
a. Identification of fixed costs common to all building is based on the UMCS configuration. The fixed
costs include all the Central Station and Island Station equipment; field hardware, operating system and
command software; applications software; Central Station/Island Station construction (when applicable);
training; documentation; and maintenance and service (for the first year). The UMCS fixed costs will be
entered in Table 12-4 at the end of this chapter.
b. Identification of the fixed costs in each building: field equipment panel and data transmission
system installation costs, and associated maintenance and service costs for the first year. These items
will be entered in Table 12-4 at the end of this chapter.
c. Identification of maintenance costs for UMCS related equipment provided as part of the project.
The costs for each building will be entered in Table 12-4 for use in determining the savings to investment
ratio (SIR).
12-7
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